refs #16523 [fid_adlr] display only fid-medien link

* set regex

themes/fid_adlr/templates/get-it-box/links.phtml

@@ -7,10 +7,12 @@
     <?php $maxDisplayLength = 50; ?>
     <?php if (!empty($urls)): ?>
       <?php foreach ($urls as $current): ?>
+        <?php if (preg_match_all('/fid\-medien/', $current['url'])): ?>
         <a href="<?= $this->escapeHtmlAttr($this->proxyUrl($current['url'])) ?>" target="_blank"><i
                   class="icon icon-external-link" aria-hidden="true"></i>
           <?= $this->truncate($this->escapeHtml($current['desc']), $maxDisplayLength) ?>
         </a><br/>
+        <?php endif; ?>
       <?php endforeach; ?>
     <?php endif; ?>
     <?php /* finc-specific snippet - #9274 - replaces if ($openUrlActive): ... - CK */ ?>